✨ Add new hook for modal state

Signed-off-by: ibolton336 <ibolton@redhat.com>

client/src/app/shared/hooks/useCreateEditModalState.ts

@@ -0,0 +1,18 @@
+import React from "react";
+
+type ModalState<T> =
+  | { mode: "create"; resource: null }
+  | { mode: "create"; resource: T }
+  | { mode: "edit"; resource: T }
+  | null;
+
+export default function useCreateEditModalState<T>() {
+  const [modalState, setModalState] = React.useState<ModalState<T>>(null);
+  const isModalOpen = modalState !== null;
+
+  return {
+    modalState,
+    setModalState,
+    isModalOpen,
+  };
+}